Door ixi



L. E. CHRlSTY.

OOR LATCH AND LOCK. APPLICATION man MAR. 24, :919.

LSMAGO.

Patented Aug.' 5, 1919.

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ATT'cQ/vfx UNITED sTATEs PATENT oEEicE.l

LOYI) CHRISTY, 10]!" MONTICELLO, INDIANA.

noon LATCH Ann LOCK. p

To all w/wm t may concern:

Be it known that l, LoYD E. CHRISTY, `a citizen of the United States, residing at Monticello, in the county ofWhite and State of Indiana, have invented certain new and useful Improvements in Door Latches and Locks, of which the following is a specifica tion. a

This invention relates to a device `for latching and locking doors, being particularly adapted to sliding types of doors used on barns and garages; and one of the objects of the invention consists in the provision of a device of the above character whereby doors can be latched and held against being accidentally unlatched by animals, but which can be readily accomplished by a person;

A further object of the invention consists in the provision of a device `of the above character whereby the latched doors can be locked securely `and can not be unlocked eX- cept by a person having the proper key. f

A still further object of the invention consists in `the provision of a door latching and locking device whichis'simple in construction, efficient in ,operation and economical to manufacture.`

l accomplish the above object of the in `vention, and such others as may appear from a reading of the following description and claims, by means of the construction illustrated in the accompanying drawings, form ing a part hereof, in which--` Figure 1 is a front elevation of my improved door latching and locking device. Fig. 2 is a horizontal sectional view of the meeting edges of a pair of sliding doors with my latching and locking device shown in elevation, on the line 3-3 in Fig. 1.

Referring to the drawings, 10 and 11 represent the two main members of my latching and locking device, of which mem ber 10 is carried by door 12, and member 11 by door 13. These members comprise, preferably, metal straps which are secured to doors 12 and 13 by suitable bolts 111. Strap 11 terminates at one end in a roll 15 which provides a handhold for the operator in sliding the door 13. The opposite end of strip 11 is bent inwardly on a receding angle, as at 16, and terminates in a roll 17 to form a shoulder 18 which is above and in advance of the surface of incline 16, and the purpose of roll 17 will be hereinafter described. When the meeting edges of doors l2 and 13 are brought together the project- Specification of Letters 1atent. Patented Aug, 5, 1919 Appli-cation filed March 24, 1919,` Serial No. 284,571. i l

ing end of inclined portion 161ofstrap 11 Tongue 21 swings freely within recess 20 and is normally held in a position to be contacted and operated by roll 17 by means of a spring 25, and tongue 21 when not in operative position, as when the doors are unlatched, rests against a lug 27 carried by a plate 28 secured to the inner surface of door 12. The end of strap 10 opposite the end to which tongue 21 is pivoted terminates in a roll 30 which acts as a hand-hold, similarly tothatof handholdl. `When d oors 12`and 13 are brought together roll 17 on strap 11 forces tongue 21 backward into recess 20 of door 12 untiltongue 21 drops behind roll 17 and abuts shoulder 18, at which time the parts aresecurely locked preventing `doors 12 and 13 from `being separated, as indicated in Fig. 2. In this last named position it will beobserved` thatin case force is applied to separate the doors `the parts will become more firmly impinged than before. Before `doors, 12 and 13 can be unlatched and sep- `arated from each other tongue 21 must be moved free and out of contact of shoulder p 18. This initial movement of tongue 21 is accomplished by means of a shifting-bar 35 carried in door 13. One end of bar 35 passes through an aperture 36 in incline 16 and rests against the face of tongue 21 when doors 12 and 13 are locked together, and bar 35 is shifted longitudinally by means of a transverse handle 37 which is formed in tegrally with shifting-bar 35, and handle 37 extends outwardly beyond an elongated slot 38 which admits bar 35 to be shifted longitudinally. Bar 35 is normally held in its retracted position by means of a spring Ll0.

The mechanism so far described relates to the means for latching` doors 12 and 13, and the means whereby the said doors can be positively locked together will now be described. When the doors are latched together, as shown in` Fig. 2 of the drawings, the longitudinal shifting of bar 35 is pre'- vented by means of a. U-shaped latch 50 which is pivoted at 51 to strap 1l. Then out of use, as when the device is employed for merely latching the doors, latch 50 Occupies the position indicated by means of dotted lines in Fig. 1, and when said latch 50 occupies operative position it assumes the position indicated by means of the full lines in Fig. 1. In this last mentioned position the outer periphery of latch 50 contacts the adjacent surface. of handle 37, the free end of latch 50 passing between a pair of out-- wardly disposed lugs 52 formed on strap 1l. The free end of latch 50 terminates in a loop 53 through which the bail 54 of a lock 55 may be passed, thereby preventing the raising of latch 50 and the freeing of handle 37. Arranged along the upper edge of latch 50 is a finger-hold 56 by which said cam can be manipulated about its pivot 51.

The device is so simple in its construction that further description thereof is deemed unnecessary.

Having thus fully described my said invention, what I desire to secure by Letters l. A combined door latch and lock com;

prising a member having an inclined face terminating in a roll, a companion member carried by the object to which the door is latched, a swinging tongue carried by the companion member and adapted to impinge the adjacent side of the roll on the first member, for latching the two members to- 'getherx the adjacent side of the roll on the first member, means for holding the tongue in a determined position with the door unlatched, and means for limiting the travel of the tongue in one direction.

3. A combined door latch and lock eemprising a member having an inclined face terminating in a roll, a companion member carried by the object to which the door is latched, a swinging tongue carried by said companion member and adapted to impinge the adjacent face of the roll carried by the first member when the door is latched, and means for initially moving the tongue out of contact with the roll and unlatching the door.

4. A combined door latch and leek comprising a member having an inclined face terminating in a roll, a companion memberl carried by the object to which the door is latehed, a swinging tongue carried by said companion member and adapted to impinge the adjacent face of the roll carried by the rst .member when the door is latched, means comprising a shifting-bar for initially meving the tongue out of contact of the roll carried by the first member, a handle for shifting said bar, and a movable cam earried by the first member and susceptible of being moved into the path of and locking said handle against longitudinal travel.

In witness whereof, I, Lern E. CHRISTY, have hereunto set my hand and seal at Monticello, Indiana, this 8th day of March, A. D. one thousand nine hundred and nineteen.

LOYD E. CHRISTY. [L s.]

Copies of this patent'may be obtained for five cents cach, by addressing the Commissioner of Patentx,

' Washington, D. C. 

